Analytical Study on Wind-induced Vibration and its Control of Transmission towers in Mountainous Area
A method for analyzing wind-induced vibration and its control of transmission tower-line system in mountainous area is described. The method is applied to a real transmission line containing two selfsupporting steel angle towers, 3 spans of conductors and ground lines together with insulators. Analyses are conducted for the out-of-plane wind direction, and the fluctuating wind load on tower-line system is simulated by harmony superposition method and davenport spectrum. The numerical results indicate that the wind-induced response and its control effect are mainly related to the stiffness of the towers, rather than the mounting height or the spans of the power lines. At the same time, viscoelastic dampers fixed on the main members can suppress the windinduced displacement of the towers effectively.
Transmission line Mountainous area Wind-induced vibration Vibration control
Zhengyi Sheng Chun Xia Weiping Xu Pengyun Li
School of Aeronautical Manufacturing and Engineering, Nanchang Hangkong University,Nanchang 330063, Electric Power Research Institute, Guangdong Power Grid Corporation,Guangzhou 510000, China
国际会议
上海
英文
635-639
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）